Heater.



PATENTED APR. 17, 1906.

J. J. ENGBL.

HEATER.

APPLICATION FILED 00124, 1904 UNITED STATES PATENT OFFICE.

HEATER.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed October 24, 1904. Serial No. 229.733-

T0 at whom it may concern.-

Be it known that 1, JOHN J. ENGEL, a citizen of the United States, residing at Mount Oliver, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful. Improvements in Heaters, of which the following is a specification, reference being had therein to the accompanying drawings, forming part of the specification, in which Figure 1 is a central vertical section through my improved radiating -heater. Fig. 2 is a horizontal cross-section on the line II II of Fig. 1.

My invention refers to improvements in the class of radiating-heaters employing gaseous or fluid fuel, although it may by properly designing the combustion-chamber be adapted to any suitable solid. fuel.

The device has in view the provision of a large radiating area for the fiues, the construction and arrangement of flues whereby such radiation is increased and comparatively large surface incorporated within a reduced compact structure, the construction of the flues whereby the circulation of the gases of combustion is partially arrested and caused to traverse a tortuous course together with various other features of improvement and change as shall be more fully hereinafter set fort Referring now to the drawings illustrating the invention, 2 represents the outer inclosing shell of the heater, which may be cylindrical in form, as shown, or of any other suitable design. The cold air from the exterior is furnished by the usual intake-pipe 3, thereby providing a pure supply of air from the exterior of the building or, if desired, it may be taken in throu h suitable apertures 4 at the base of the shedl. The top of the shell 5 constitutes a supply-dome from which the heated air is carried off by the usual supply pipes or conduits located at intervals around the drum, as shown. In the interior of the shell 2 and incorporated therewith at its base portion is a combustion-chamber 7 of any suitable form, within which is mounted afuelburner 8, to which fuel is supplied by. valvecontrolled pipe 9 or any other suitable means, the usual mixer 10 being preferably incorporated therewith.

11 is a door opening into the combustionchamber by which the fuel may be ignited or access may be had to the interior at any time.

12 is a receiving-chamber for the products of combustion, similar to the combustionchamber and located within the upper porduit, as a chimney, arranged to carry off the burned gases. Between the combustion chamber 7 and the receiving-chamber and connected therewith are a series of flues 14, preferably rectangular in form, as square or oblong, in the interior of which are located a series of oppositely-disposed baflie-plates 15, extending inwardly alternately from opposite sides or ends of the flue-walls, as clearly shown in Fig. 1, the object of which baiileplates is to partially arrest or oppose the upward fiow of the gases of combustion and also to provide closely-adjacent numerous heatabstracting elements. It will be readily seen that as thus constructed the heat of the upwardly-flowing gases will be practically entirely abstracted in their circulation from the bottom to the top of the flues and that their passage therethrou h will be materially checked, and thus facilitate the objects in view, the gases finally passing outwardly from the flues into the interior of receivingchamber 12. This receiving-chamber is provided with an additional bafiie-plate 16, sloping backwardly away from the exitopening into flue 13, as shown, preferably slightly inclined and terminatin within a short distance of the opposite wal of chamber 12, the object being to deflect the gases away from the outlet-flue over toward such opposite side, causing them to completely traverse the entire upper area of the receiving-chamber both underneath and above the bafiieplate 16 before finally emerging into Both the combustion-chamber 7 and receiving-chamber 12 are provided with inner walls 17 and 18, providing a central aircavity, as clearly shown. It will be seen that the cold air entering the shell 2 from supply-pipe 3 or from any other source will circulate freely around the combustionchamber both outside and inside, as indicated by arrows, and will also pass between the closely-adjacent flues 14 in one direction or another, or both, in traveling up through the interior area of the shell. The air is thus brought into contact with all of the exposed surfaces of the combustion-chamber fines and the receiving chamber before finally emerging into the supply-pipes 6. The circulation of the air may be readily controlled by the usual dampers or registers, and. this portion of my invention is not new per se.

Having described my invention, what I claim is 1. A heater consisting of a rectangular burner-chamber provided with a central rectangular air-opening, a burner located in the burner-chamber, a series of closely-adjacent rectangular flues having parallel sides con nected with the burner-chamber, series of alternately-arranged baffle-plates within the fines, an upper rectangular receiving-chamber for the products of combustion connected with the upper ends of the fines, provided with an interior baffle-plate, an outlet-fiue, and a central rectangular air-opening, and an outer surrounding cylindrical casing provided with an air-inlet and one or more outlet openings, substantially as set forth.

2. In a heater, the combination of a rectangular burner chamber provided with a laterally-arranged door and a rectangular central air-opening, a burner located within the burnerchamber, a correspondinglyshaped upper receiving chamber for the products of combustion provided with a defleeting baffle-plate, an outlet-flue, and a central rectangular airopening, series of rectangular flues extending from the burner-chamber to the receiving-chamber rectangularly arranged With closely-adjacent parallel walls and interior baffle-plates, and an outer cylindrical casing provided with an air-inlet and one or more hotair-outlet openings, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN J. ENGEL. l/Vitnesses:

JAS. J. MOAFEE, G. M. CLARKE, 

